.s. president barack obama has made a bid for re-election at the democratic party's national convention in charlotte, north carolina. he told the delegates the vote in november is a choice of a generation, and he called on supporters to join him again. >> our problems can be solved. our challenges can be met. the path we offer may be harder, but it leads to a better place, and i'm asking you to choose that future. >> barack obama wrapped up the democratic national convention by asking voters to consider what the election is all about. >> on every issue, the choice you face won't just be between two candidates or two parties. it will be a choice between two different paths for america. >> obama delivered his message to delegates and to millions of americans watching on television. he responded to voters' concerns about the economy, promising 1 million new jobs in manufacturing over the next four years. >> yes, our road is longer, but we travel it together. we don't turn back. we leave no one behind. >>> president obama's message provided a book end to several days of speeches by prominen